AirHint found the following cheapest return flights from Athens (ATH) to Charleroi (CRL) in September 2025 (see full year).

Return flights

30 Sep - 01 Oct	easyJet
24 Sep - 27 Sep	Wizz Air Malta
30 Sep - 02 Oct	Aegean Airlines
24 Sep - 30 Sep	Wizz Air Malta
23 Sep - 24 Sep	Wizz Air Malta
23 Sep - 29 Sep	Wizz Air Malta
23 Sep - 23 Sep	Ryanair
17 Sep - 23 Sep	Wizz Air Malta
30 Sep - 05 Oct	easyJet
24 Sep - 28 Sep	Wizz Air Malta
26 Sep - 29 Sep	Ryanair
29 Sep - 05 Oct	Ryanair
29 Sep - 02 Oct	Ryanair
25 Sep - 01 Oct	Ryanair
23 Sep - 27 Sep	Ryanair
22 Sep - 23 Sep	Wizz Air Malta
25 Sep - 08 Oct	Ryanair
26 Sep - 01 Oct	Ryanair
23 Sep - 03 Oct	Ryanair
29 Sep - 06 Oct	Ryanair

Also check the deals for one-way flights from Athens to Charleroi in September.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Athens to Charleroi in September from 138€

Return flights